Applied Science [As]

When a magnetic field moves through a conductor a current called an Eddy current is induced in the conductor due to the magnetic field’s movement. The flow of electrons in the conductor creates an opposing magnetic field to the magnet which results in damping of the magnet and causes heating inside of the conductor similar to heat buildup inside of power cords. The loss of energy used to heat up the conductor is equal to the loss of kinetic energy by the magnet.

ELECTRONEGATIVITY: The tendency of an atom to attract electrons from other atoms. Some atoms play well together (sharing electrons) while other can be …bullies (snatching electrons).

Electronegativity decreases as you go down the periodic table and when you go from right to left.

EN Value: 0 - 0.5 “Non-Polar Covalent Bond”

They share equally!

Example: F2

EN Value: 0.5 - 1.6 “Polar Covalent Bond”

Unequal sharing. The electrons are attracted to the atom with a higher electronegativity value.

Example: HCl (Hydrochloric acid)

EN Value: 1.7 + “Ionic Bond” 

Snatching! The more electronegative atoms will take electrons from the less electronegative atom. The borrower becomes a Cation, the lender becomes and anion => an ionic bond

Researchers believe they have learned how mutations in the gene that causes Huntington’s disease kill brain cells, a finding that could open new opportunities for treating the fatal disorder. Scientists first linked the gene to the inherited disease more than 20 years ago.

People have offered many potential explanations for this discrepancy, but this ad highlights the importance of the social cues that push girls away from math and science in their earliest childhood years.